8256823 has 2 divisors, whose sum is σ = 8256824. Its totient is φ = 8256822.

The previous prime is 8256779. The next prime is 8256863. The reversal of 8256823 is 3286528.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8256823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8256863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4128411 + 4128412.

It is an arithmetic number, because the mean of its divisors is an integer number (4128412).

Almost surely, 2^8256823 is an apocalyptic number.

8256823 is a deficient number, since it is larger than the sum of its proper divisors (1).

8256823 is an equidigital number, since it uses as much as digits as its factorization.

8256823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 34.

The square root of 8256823 is about 2873.4688096445. The cubic root of 8256823 is about 202.1176894812.

The spelling of 8256823 in words is "eight million, two hundred fifty-six thousand, eight hundred twenty-three".